so supervisors enacted the ban to help the environment. it affects all retail outlets and grocery stores in more than 20 cities throughout the county. retailers will charge ten- cents a piece for paper bags. but you can avoid that fee by grabbing a re-usable bag. and today, target is giving away more than one million reusable bags nationwide in honor of earth day. earth day is tomorrow. but this weekend, several bay area communities are pitching in to do their part to help out mother nature. kron four's jeff pierce went to one earth day event in the east bay. >> i'm mother nature. you're mother nature? yes i am it's >> reporter: and mother nature along with earthday was observed the bay saturday with people cleaning up shore lines. a lot of straws, a lot of cigarette butts, a lot of plastic, a lot of cellophane a lot of bottlecaps. >> reporter: for those who weren't out scouring shorelines there were events throughout the bay area hoping to spread the message that earthday is about our enviornment. >> a lot of it gets ingested by >> think